WIFI Calling IssueSupport

Sorry if it has been covered. My MT4G WIFI calling sound quality is horrible. It's choppy just like talking in bad reception area.

My friend's MT4G is even worst. It always turn off automatically by itself. He tried different settings too. Also, when he came home where his home has poor to no Tmo reception, WIFI never turn on automatically.

I too have been disappointed with the extremely poor quality of WiFi calling on the Mytouch 4G. I even went so far as to buy a new high-end router and set my phone's wireless connection for the highest priority QOS thinking it might resolve the problem. Bluetooth is a requirement for me and unfortunately the new router didn't make much of a difference in call quality. After two firmware upgrades to the phone in the past year I couldn't believe that the problems discussed here hadn't been resolved.

After doing some investigation online I discovered that severe interference between Bluetooth and 2.4 gig Wifi (802.11g) can be a problem on many devices. It seems the Mytouch 4g is especially prone to such issues.

The solution was switching the phone to the 5 gig Wifi band (802.11a). The MT4G specs don't include this capability in most reviews and product sheets. It also doesn't show up on either the T-Mobile or HTC web page, but the phone works great on that band. For the first time I'm able to use the Wifi calling feature with my Bluetooth headset. Call quality has been just fine.

I'm not a WIFI expert but I think 802.11a is a very old standard. There are 11b, 11g, and 11n is the latest one. It is not necessary 11a be the solution. You only need to get any wifi router that broadcast in 5.8ghz frequency. My current Linksys router support both 2.4ghz and 5.8ghz.

I too have been disappointed with the extremely poor quality of WiFi calling on the Mytouch 4G. I even went so far as to buy a new high-end router and set my phone's wireless connection for the highest priority QOS thinking it might resolve the problem. Bluetooth is a requirement for me and unfortunately the new router didn't make much of a difference in call quality. After two firmware upgrades to the phone in the past year I couldn't believe that the problems discussed here hadn't been resolved.

Apparently something HAS been changed in the latest firmware. Wifi calling now works fine and so does my Bluetooth headset. I've found various articles online that discuss the severe interference that can occur between Bluetooth and 2.4 gig Wifi (802.11g). It seems the Mytouch 4g is especially prone to such issues. The solution for getting the headset to work was switching the phone to the 5 gig Wifi band (802.11a). The MT4G specs don't include this capability anywhere I've found including either the T-Mobile or HTC web page, but the phone works great on that band. For the first time I'm able to use the Wifi calling feature with my Bluetooth headset. Call quality has been just fine.

I'm not a WIFI expert but I think 802.11a is a very old standard. There are 11b, 11g, and 11n is the latest one. It is not necessary 11a be the solution. You only need to get any wifi router that broadcast in 5.8ghz frequency. My current Linksys router support both 2.4ghz and 5.8ghz.

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It may be old but much less devices uses the 5.8ghz frequency/bandwidth making it much better than b/g/n/